JP6315972B2 - Handrail mounting structure - Google Patents

Description

  The present invention relates to a handrail mounting structure, and more particularly to a handrail mounting structure in a building.

  Conventionally, a structure for attaching a handrail to a floor of a building is known. In such a handrail attachment structure, the handrail is required to be firmly fixed to the support structure. For example, Patent Document 1 discloses a handrail including a base fixed to a support structure, a support column erected on the base, a head supported by the support column, and a male screw part for joining the base and the support column. A mounting structure is disclosed.

  In this handrail attachment structure, fixing male screw parts for fixing the base to the support structure are disposed on both the left and right sides of the support column when the direction along the longitudinal direction of the headboard is the front-rear direction. These fixing male screw parts are inclined and screwed into the support structure so as to form an inverted C shape.

JP 2007-126883 A

  However, in the above-described conventional handrail mounting structure, when fixing the base to the support structure, a dedicated base for inclining the fixing male screw component is necessary, and there is a possibility that the construction becomes difficult. In addition, since an excessive force may be generated between the base and the fixing male screw part due to the action of the horizontal force, the base may be enlarged in order to ensure the proof strength against this.

  An object of the present invention is to provide a handrail attachment structure capable of firmly fixing a handrail without using a dedicated base.

  The handrail mounting structure of the present invention includes a support for supporting the handrail, a base coupled to the lower end portion of the support, and a support member for receiving the base, and the support member is fixed to the support structure to thereby support the structure. In the handrail mounting structure on which the handrail is supported, the support member is formed to have a width that is at least twice the width of the base in a direction orthogonal to the length direction of the handrail. A receiving portion for receiving the base is provided at an end of the base, the base is fixed to the receiving portion, and one end side and the other end side of the support member are fixed to the support structure. And

  In this handrail mounting structure, the support member has a wide width that is twice or more the base width. Therefore, not only the one end side to which the base of the support member is fixed, but also the other end side at a position away from the one end side is fixed to the support structure. Thereby, compared with the case where a support | pillar is being fixed to the support structure only by the base, it will acquire larger resistance force with respect to the moment which arises in the support | pillar at the time of pushing and pulling a handrail in the width direction. Here, the “support structure” is a skeletal element in a building, such as a beam, a column, a slab, or a wall.

  The support member includes a parting member that forms the receiving part and a base member provided on a lower surface side of the parting member, and the base member is formed in a plate shape having a width that is twice or more the width of the base in the width direction. The base is fastened to the receiving portion, and the parting member and the base member are fixed by either or both of adhesion and fastening, and a fastening material for fastening the base It is good also as a structure fixed also by. In this way, the base, the parting member and the base member are more firmly fixed by using the fastening material for fastening the base to the receiving part for fixing the parting member and the base member. become. Thereby, the rigidity below the support column is enhanced, and the wobble on the upper end side of the support column is further suppressed.

  The base member includes a plate-like member and a backing member provided on the lower surface of the plate-like member, and the backing member is fastened to the support structure at both ends in the width direction of the support member. The backing member may be fastened by a fastening material that penetrates to the support structure at both ends and the center in the width direction of the support member. By configuring the base member with a plate-like member that forms the upper layer and a backing member that forms the lower layer, not only the entire base member but also the backing member can be fastened. Thereby, compared with the case where a base member is comprised with one member, it will be fixed more firmly.

  Further, a fastening material may be driven into the support member and the support structure from the support structure toward the support member. Thus, by fastening the fastening material from the support structure side, a pressing force from the support structure side is applied in addition to the action of the pressing force by the fastening material from the support member side. Therefore, the adhesion between the support member and the support structure can be further increased. Moreover, exposure of the fastening material on the upper surface side of the support member can be suppressed, and design properties can be improved.

  Moreover, the backing member is formed in a plate shape by plywood, and a groove may be provided along at least one of the upper and lower surfaces along the length direction of the handrail. The backing member formed of plywood may naturally generate slight warpage due to drying shrinkage or the like. However, the above configuration makes it easy to change the shape of the backing member around the position where the groove is formed. Therefore, when the backing member is fastened to the support structure, warpage of the backing member is absorbed and a flat state is maintained. Thereby, subsequent plate-like members and the like can be attached without unevenness, and as a result, a firm fixed state can be constructed.

  According to the present invention, it is possible to provide a handrail attachment structure that can firmly fix a handrail without using a dedicated base.

It is a perspective view which shows the handrail attachment structure which concerns on one Embodiment of this invention. It is sectional drawing which shows the handrail attachment structure of FIG.

  Embodiments according to the present invention will be specifically described below with reference to the drawings. For convenience, the same reference numerals are given to substantially the same elements, and the description thereof may be omitted. Note that the present invention is widely applicable to a handrail mounting structure in a building, but here, an example in which the present invention is applied to a handrail provided on a floor facing an atrium in a steel structure will be described.

  FIG. 1 is a perspective view showing an aerial W portion in a steel structure building. The handrail 1 is provided at the end of the floor 10 facing the blow-through W as a safety fence for preventing falling. The handrail 1 is supported by a column 3, and a base 5 is connected to the lower end of the column 3. And the base 5 is being fixed to the supporting member 30 formed in the blow-off W side edge part of the floor 10. FIG. In addition, as shown in FIG. 2, the floor 10 is provided with a floor heating 20 on the side opposite to the blow-through W. The floor heating 20 is placed on the upper surface side of the floor slab 11 in the order of a moisture-proof sheet 21, a rubber mat 22, a plywood 23 and a floor heating panel 24, and the uppermost surface is a flooring material 25.

  The handrail 1 is a bar-shaped member extending in one direction, and is disposed above the floor 10 so that the length direction is along the end portion of the floor 10 on the side of the blowout W. Thereby, the handrail 1 serves as a partition between the floor 10 and the blow-through W. A plurality of support columns 3 that support the handrail 1 are arranged at equal intervals (for example, 120 mm) in the length direction of the handrail 1. By fixing the upper end portion of the support column 3 to the handrail and the lower end portion of the support column 3 to the base 5, the handrail 1, the support column 3 and the base 5 are integrally connected to form a fence shape. The fixing between the support column 3, the handrail 1 and the base 5 is, for example, by fastening members or welding, and the method is not particularly limited. The base 5 is a plate-like member extending in one direction, and is fixed to the upper surface of the floor 10 along the blow-off W side end of the floor 10. In addition, the handrail 1, the support | pillar 3, and the base 5 are comprised with the material provided with the predetermined intensity | strength which can function as a safety fence, for example, are comprised with a metal, wood, resin, etc.

  As shown in FIGS. 1 and 2, the beam 12 supporting the floor 10 is formed of an H-shaped steel extending in the length direction of the handrail 1, and both ends of the beam 12 are supported by pillars (not shown). Has been. A grooved steel 13 is fixed to the upper part of the beam 12 on the blow-through W side by a connecting member 12a such as a bolt. The grooved steel 13 is disposed along the beam 12 in a state where the opening is blown through and directed toward the W side. And the floor slab 11 is formed by spanning a lightweight aerated concrete (ALC) panel on the opposite side to the blow-through W of the beam 12. Since the floor slab 11 and the channel steel 13 are formed at the same height, a flat upper surface is formed by filling the mortar between the floor slab 11 and the channel steel 13. Here, the beam 12, the floor slab 11, and the channel steel 13 are skeletal elements of the building, and are support structures that support the building. In addition, the wall surface 15 is formed in the end part by the side of the blow-through W of the beam 12 and the channel steel 13 with the decorative board extended to a floor surface.

  A support member 30 for supporting the handrail 1 is fixed to the upper surface side of the floor slab 11 and the channel steel 13 which are support structures. The support member 30 includes a parting member 31 that forms a receiving portion to which the base 5 is fixed, and a base member 32 that is provided on the lower surface side of the parting member 31. The base member 32 includes two upper and lower layers, and includes an upper plate member 33 and a lower backing member 35 provided on the lower surface of the plate member 33.

  The backing member 35 is a plate-like member extending in one direction, and is formed of a woody material such as plywood, for example. The backing member 35 is fixed to the support structure (floor slab 11, channel steel 13) along the blow-off W side end, and is at least substantially the same length as the handrail 1 in the length direction of the handrail 1. It extends. The backing member 35 has a width at least twice the width of the base 5 in a direction perpendicular to the length direction of the handrail 1 (hereinafter referred to as “width direction”), Arranged across the floor slab 11. In the present embodiment, the width (about 250 mm) of the backing member 35 is about three times the width of the base (about 80 mm).

  The backing member 35 is provided with a groove 35a parallel to the length direction. The groove 35 a is provided substantially at the center of the lower surface of the backing member 35, and has a depth that is about ½ of the thickness of the backing member 35. The cross-sectional shape of the groove 35a is substantially rectangular, the width is smaller than the depth, and is about 1/3 of the depth. In this embodiment, the thickness of the backing member is about 20 mm, and the depth and width of the groove are about 10 mm and about 3 mm, respectively.

  The plate member 33 is formed with substantially the same length and width as the backing member 35, and the thickness thereof is about 12 mm smaller than the backing member 35. Similar to the backing member 35, the plate-like member 33 is made of a wood material such as plywood. The plate-like member 33 formed in this way is arranged so that the width and length overlap the backing member 35 with respect to the upper surface of the backing member 35.

  On the upper surface of the base member 32 constituted by the plate-like member 33 and the backing member 35, the parting member 31 is disposed on the blow-off W side, and the flooring material 25, which is a floor finishing material, is disposed on the side opposite to the blow-off W side. . The parting member 31 is a substantially plate-like member that is substantially the same length as the base member 32 and has a width of about ½, and the length direction is arranged along the end portion on the blow-through W side. And constitute part of the floor finish. A recess 31 a is formed on one end side in the width direction of the parting member 31 so as to be fitted to the end 25 a of the flooring material 25. Moreover, the other end side in the width direction of the parting member 31 is formed with a concave portion 31b for fitting with the wall surface 15 on the lower surface thereof. Therefore, the parting member 31 is disposed so as to protrude from the wall surface 15 toward the blow-by W side. A base 5 that supports the column 3 of the handrail 1 is fixed to the upper surface of the parting member 31 having such a configuration.

  The fixing of the backing member 35, the plate member 33, the parting member 31 and the base 5 to the support structure will be described.

  The backing member 35 is fixed to the support structure with a fastening material at least at both ends in the width direction. A screw 41 driven from the upper surface side reaches the channel steel 13 on the end side (for example, a position 20 mm from the end) on the blow-through W side in the width direction of the backing member 35. Further, a screw 42 driven from the upper surface side reaches the floor slab 11 on an end portion side (for example, a position of 50 mm from the end portion) opposite to the blowout W side in the width direction of the backing member 35. Furthermore, a screw 43 driven from the upper surface side reaches the floor slab 11 at the substantially center of the backing member 35 in the width direction. These screws 41, 42, and 43 at both ends in the width direction and in the center are driven in the length direction at a pitch of 150 mm, for example.

  Thus, the backing member 35 is fixed by being fastened to the support structure by the screws 41 and 42 at both ends in the width direction. The backing member 35 is fastened to the support structure by being fastened by a screw 43 driven into the center side.

  The backing member 35 formed of a wood-based material may naturally generate slight warpage due to drying shrinkage or the like. If no measures are taken against such warpage or the like, the plate-like member 33 and the parting member 31 arranged on the upper side of the backing member 35 may not be flat and the finish may be deteriorated. Since the backing member 35 is easily bent around the formation position of the groove 35a formed in the length direction, the shape of the backing member 35 is easily changed. Accordingly, when the backing member 35 is fastened to the support structure, warpage of the backing member 35 is absorbed and a flat state is maintained.

  The plate-like member 33 is fixed to the support structure by fastening materials at both ends and the center in the width direction. A screw 44 driven from the upper surface side reaches the backing member 35 and the floor slab 11 on the end portion side (for example, a position 20 mm from the end portion) opposite to the blowout W side in the width direction of the plate-like member 33. . Further, a screw 45 driven from the upper surface side reaches the backing member 35 and the floor slab 11 at the center in the width direction of the plate member 33. Furthermore, a screw 46 driven from the grooved steel 13 side reaches the backing member 35, the plate-like member 33, and the parting member 31 on the end side of the plate-like member 33 on the blow-off W side in the width direction. The screw 46 is driven into the upper side through a hole (not shown) provided in the channel steel 13 with a slight inclination to the side opposite to the blow-through W side. These screws 44, 45, 46 are driven in the length direction at a pitch of 150 mm, for example.

  Thus, the plate-like member 33 is fastened to the backing member 35 and fastened to the support structure by the screws 44, 45, 46 at both ends and the center in the width direction. The plate-like member 33 is fixed more firmly by applying a pressing force from the support structure side by a screw 46 driven upward. The screws 44, 45, and 46 fix the plate member 33 to the support structure, and more firmly fix the backing member 35 to the support structure.

  A screw 46 driven from the above-described channel steel 13 side reaches the parting member 31 on the blow-through W side in the width direction. Further, the screws 47 driven from the recess 31 a of the parting member 31 reach the plate-like member 33 and the backing member 35. The screw 47 is inclined to the blow-through W side and driven downward. The screws 47 are driven in the length direction at a pitch of 150 mm, for example. Further, for example, an aqueous polymer isocyanate-based adhesive (not shown) is applied to the lower surface of the parting member 31 with respect to the contact surface with the plate-like member 33. In this way, the parting member 31 is fixed directly to the support structure (channel steel 13) by the screws 46, and is also indirectly fixed by being fixed to the plate member 33 by the screws 47 and the adhesive. It is fixed to the support structure (floor slab 11, channel steel 13).

  The base 5 is fixed to the support member 30 by a pair of screws (wood screws) 48 penetrating to the support member 30 on both sides in the width direction. The space | interval in the width direction of the bis | screw 48 is 50 mm, for example, and is about 1/4 of the space | interval of the bis | screw 44 and bis | screw 46 (or bis | screw 41) driven into the both ends of the supporting member 30. FIG. The screw 48 driven from the upper surface side of the base 5 reaches the parting member 31, the plate-like member 33, and the backing member 35. The screws 48 are provided before and after each column 3 in the length direction (see FIG. 1). That is, the screws 48 are provided at the four corners of each column 3. Thus, the base 5 is fixed to the support member 30 indirectly by being fixed to the support member 30 by the screws 48. Further, since the screw 48 reaches the backing member 35, the parting member 31, the plate-like member 33, and the backing member 35 are more firmly fixed.

  In this handrail mounting structure, the support member 30 (the base member 32) has a width that is at least twice as large as the width of the base 5. And the end part side to which the base 5 (and the support | pillar 3 fixed via the base 5) in the support member 30 is fixed, and the opposite end part side in the position away from this end part side are support structures. It will be fixed to the body. Thereby, the support | pillar 3 obtains a bigger resistance force with respect to the moment which arises in the support | pillar 3 at the time of pushing and pulling the handrail 1 in the width direction compared with the case where it fixes to the support structure only by the base 5. It will be.

  Further, the base 48, the parting member 31, and the base member 32 are made stronger by using the screws 48 for fastening the base 5 to the parting member 31 to fix the parting member 31 and the base member 32. It will be fixed. Thereby, the rigidity under the support | pillar 3 is improved and the wobble on the upper end side of the support | pillar 3 is suppressed more.

  Further, by forming the base member 32 with the plate-like member 33 constituting the upper layer and the backing member 35 constituting the lower layer, not only the entire base member 32 but also the backing member 35 can be fastened. . Thereby, compared with the case where the base member 32 is comprised with one member, it will be fixed more firmly.

  Further, by tightening the screw 46 from the grooved steel 13 side which is the support structure, in addition to the pressing force by the screws 41 to 45 from the support member 30 side, the pressing force from the support structure side is applied. Will be. Therefore, the adhesion between the support member 30 and the support structure can be further increased. Further, since the pressing force from the backing member 35 side is applied in addition to the action of the pressing force by the screws 47 and 48 from the parting member 31 side, the close-off member 31, the plate-like member 33 and the backing member 35 are in close contact with each other. The sex can be increased. Moreover, the exposure of the screw | thread on the upper surface side of the supporting member 30 can be suppressed, and the designability can be improved.

  Further, the backing member 35 is easily changed in shape around the groove forming position. Therefore, when the backing member 35 is fastened to the support structure, a flat state is maintained even if the backing member is warped. Thereby, attachment of the plate-like member 33 etc. which are arrange | positioned on the upper side can be performed without unevenness, and a firm fixed state can be constructed as a result.

  Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like may be made without departing from the scope of the present invention. Good. For example, although the example in which the width of the support member 30 (that is, the plate-like member 33 and the backing member 35) is about three times the width of the base 5 is shown, the present invention is not limited to this. The support member only needs to have a width that is twice or more the width of the base.

  Further, although the parting member 31 and the base member 32 are fixed by the screws 46 and 47 and the adhesive in addition to the screws 48, the present invention is not limited to this. The parting member 31 and the base member 32 may be fixed by any one or both of adhesion and fastening in addition to the screw 48. For example, when fixing only by adhesion, it is not necessary to drive the screw 47 and the screw 46 does not need to reach the parting member 31. Moreover, when fixing only by fastening, it is not necessary to use an adhesive.

  Moreover, although the base member 32 showed the example comprised by the plate-shaped member 33 and the backing member 35, it is not limited to this. For example, when the floor 10 is configured without using the floor heating panel 24, the base member may be configured only by the backing member 35 without using the plate-shaped member 33.

  In addition, although an example in which only one groove 35a having a rectangular cross section is formed at the center on the lower surface side of the backing member 35 is shown, the present invention is not limited to this. For example, the groove formed in the backing member may be provided other than the center. Further, the cross section may be a shape other than a rectangle, for example, a wedge shape. Moreover, two or more grooves may be provided, and the groove may be formed only on the upper surface or the lower surface, or may be formed on both upper and lower surfaces.

  Moreover, the groove | channel 35a is not restricted to when providing in parallel with the length direction of the backing member 35, What is necessary is just to be provided along the length direction.

  In addition, although the example in which the screw 41 or the like is fastened to fix the support member 30 or the like to the support structure has been shown, it is not limited thereto. For example, fastening with nails or the like may be performed (fastening), and fastening with screws and fastening with nails or the like may be mixed.

DESCRIPTION OF SYMBOLS 1 ... Handrail, 3 ... Support | pillar, 5 ... Base, 10 ... Floor, 11 ... Floor slab (support structure), 12 ... Beam (support structure), 13 ... Channel steel (support structure), 30 ... Support member , 31 ... parting member (receiving part), 32 ... base member, 33 ... plate-like member, 35 ... backing member, 35a ... groove, 41 to 48 ... screw (fastening material), W ... blow-by.

Claims (6)

A supporting column supporting the handrail, a base coupled to a lower end portion of the supporting column, and a support member receiving the base, the support member being fixed to the support structure so that the handrail is mounted on the support structure. In the handrail mounting structure that is supported,
The support member is formed to have a width at least twice the width of the base in a direction orthogonal to the length direction of the handrail, and receives the base on one end side in the width direction. With a receiving part,
The base is fixed to the receiving portion,
The one end side and the other end side of the support member are fixed to the support structure ,
A handrail mounting structure in which a fastening material is driven into the support member and the support structure from the support structure toward the support member . The support member includes a parting member that forms the receiving portion, and a base member provided on a lower surface side of the parting member,
The base member is formed in a plate shape having a width of twice or more the width of the base in the width direction,
The base is fastened to the receiving portion;
2. The parting member and the base member are fixed by one or both of adhesion and fastening, and are also fixed by a fastening material for fastening the base. Handrail mounting structure. A supporting column supporting the handrail, a base coupled to a lower end portion of the supporting column, and a support member receiving the base, the support member being fixed to the support structure so that the handrail is mounted on the support structure. In the handrail mounting structure that is supported,
The support member is formed to have a width at least twice the width of the base in a direction orthogonal to the length direction of the handrail, and receives the base on one end side in the width direction. With a receiving part,
The base is fixed to the receiving portion,
The one end side and the other end side of the support member are fixed to the support structure ,
The support member includes a parting member that forms the receiving portion, and a base member provided on a lower surface side of the parting member,
The base member is formed in a plate shape having a width of twice or more the width of the base in the width direction,
The base is fastened to the receiving portion;
The handrail mounting structure is characterized in that the parting member and the base member are fixed by either one or both of adhesion and fastening, and also by a fastening material for fastening the base . The base member includes a plate-like member and a backing member provided on the lower surface of the plate-like member,
The backing member is fastened to the support structure at both ends in the width direction of the support member,
The said plate-shaped member and the said lining member are fastened by the fastening material which penetrates to a support structure in the both ends and the center part in the said width direction of the said support member, It is characterized by the above-mentioned. Handrail mounting structure. The handrail attachment structure according to claim 4 , wherein a fastening material is driven into the support member and the support structure from the support structure toward the support member. The backing member, plywood is formed in a plate shape by, on one surface of the at least upper and lower, to claim 4 or 5, characterized in that the grooves along the length of the handrail is provided The handrail mounting structure described.

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